Edit the ccxstream start file and change the username and shared directory for your system

/opt/etc/init.d/S75ccxstream

#!/bin/sh
if [ -n "`pidof ccxstream`" ] ; then
killall ccxstream 2>/dev/null
fi
# see /opt/doc/ccxstream/README for the full summary on
# command-line options, but the terse summary is that
# -r is the directory to "share" using ccxstream, and is
# probably the option you most want to adjust.
#
sleep 2
/opt/sbin/ccxstream -r /mnt/share -u username -f -F /var/run/ccxstream.pid